(a) An affidavit explaining any defect in the chain of title to any real estate may be recorded, as an instrument affecting the same, but no one except the owner in possession of such real estate shall have the right to file such affidavit.

(b) An affidavit filed under the authority of this section, or the record thereof, including all such affidavits now on record, shall raise a rebuttable presumption from the date of its recording, as shown by the endorsement of the Territorial Registrar thereon, that the purported facts stated therein are true. Five years after the date shown by such endorsement, such presumption shall be conclusive against all persons except the United States of America and the government of American Samoa.